DOI: 10.1007/s10584-016-1806-y
Scopus记录号: 2-s2.0-85006042629
论文题名: Shorter snow cover duration since 1970 in the swiss alps due to earlier snowmelt more than to later snow onset
作者: Klein G. ; Vitasse Y. ; Rixen C. ; Marty C. ; Rebetez M.
刊名: Climatic Change
ISSN: 0165-0009
EISSN: 1573-1480
出版年: 2016
卷: 139, 期: 3 起始页码: 637
结束页码: 649
语种: 英语
Scopus关键词: Global warming
; Snow melting systems
; Annual maxima
; Decadal variability
; High elevation
; Hydrological regime
; Interannual
; Meteorological station
; Snow cover durations
; Snow covers
; Snow
; annual variation
; decadal variation
; elevation
; hydrological regime
; ice thickness
; snow cover
; snowmelt
; snowpack
; warming
; Alps
; Switzerland
英文摘要: Global warming has strong impacts on snow cover, which in turn affects ecosystems, hydrological regimes and winter tourism. Only a few long-term snow series are available worldwide, especially at high elevation. Here, we analyzed several snowpack characteristics over the period 1970-2015 at eleven meteorological stations, spanning elevations from 1139 to 2540 m asl in the Swiss Alps. Snow cover duration has significantly shortened at all sites, on average by 8.9 days decade− 1. This shortening was largely driven by earlier snowmelt (on average 5.8 days decade− 1) and partly by later snow onset but the latter was significant in only ~30 % of the stations. On average, the snow season now starts 12 days later and ends 26 days earlier than in 1970. Overall, the annual maximum snow depth has declined from 3.9 to 10.6% decade− 1 and was reached 7.8 ± 0.4 to 12.0 ± 0.4 days decade− 1 earlier, though these trends hide a high inter-annual and decadal variability. The number of days with snow on the ground has also significantly decreased at all elevations, in all regions and for all thresholds from 1 to 100 cm. Overall, our results demonstrate a marked decline in all snowpack parameters, irrespective of elevation and region, and whether for drier or wetter locations, with a pronounced shift of the snowmelt in spring, in connection with reinforced warming during this season. © Springer Science+Business Media Dordrecht 2016. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/84163
Appears in Collections: 气候减缓与适应 气候变化事实与影响
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作者单位: Institute of Geography, University of Neuchatel, Espace Louis Agassiz 1, Neuchatel, Switzerland; WSL Swiss Federal Institute for Forest, Snow and Landscape Research, Neuchatel, Switzerland; WSL Institute for Snow and Avalanche Research SLF, Davos, Switzerland
Recommended Citation:
Klein G.,Vitasse Y.,Rixen C.,et al. Shorter snow cover duration since 1970 in the swiss alps due to earlier snowmelt more than to later snow onset[J]. Climatic Change,2016-01-01,139(3)